When a killer whale carcass exhibits some unusual wounds, the Aquarium determines it to be from a wayward narwhal trapped in a nearby channel. When a wealthy philanthropist offers to finance the expedition, Dr. Roberts and his children jump at the chance to track the rare creature down, but are his intentions truly humanitarian?
| Name | Type | Role | |
|---|---|---|---|
| Lawrence Dane | Guest Star | ||
| Lance Garrett | Guest Star |